title: [Diagnosis,treatment, and prognostic of liver sarcoma: analysis of 16 cases].
abstract: OBJECTIVE
  To explore the diagnosis, treatment, and prognostic factors of liver sarcoma.
  
  
  METHODS
  The clinical data of 16 liver sarcoma patients, 9 males and 7 females, aged 46.7 (12-73), treated 1980-2005, were analyzed retrospectively.
  
  
  RESULTS
  The most common symptoms were right upper quadrant pain (56.3%) and mass in the right upper abdomen (56.3%). Alpha fetoprotein (AFP) was negative in all the patients. None was correctly diagnosed by imaging examination preoperatively. Fifteen patients underwent surgical treatment, including radical operation in 7 patients (46.7%) and palliative resection/biopsy in 8 patients. 1 patient took transcatheter hepatic arterial chemo-embolization rather than operation because of multifocal tumor. Pathological analysis diagnosed 6 patients (37.5%) as with leiomyosarcoma, 5 patients (31.25%) with angiosarcoma, 2 patients (12.5%) with fibrosarcoma, 1 patient (12.5%) with epithelioid hemangioendothelioma, 1 patient (12.5%) with myxoid liposarcoma, and 1 patient (12.5%) with undifferentiated embryonal sarcoma. The 1-year, 3-year, and 5-year survival rates were 71.4%, 41.7%, and 33.3% respectively. The 1-year, 3-year, and 5-year survival rates of the patients who received R0 were 100.0%, 83.3%, and 66.7% respectively, all significantly higher than those of the patients who did not receive R0 (all P = 0.011). The 1-year, 3-year, and 5-year survival rates of the patients with the tumor size < 5 cm were 100%, 100%, and 75% respectively, all higher than those of the patients with the tumor size > 5 cm, however, not significantly (all P = 0.084).
  
  
  CONCLUSIONS
  Liver sarcoma is difficult to be diagnosed preoperatively. Surgical resection is the mainstay of the treatment of liver sarcoma. R0 and tumor size are of prognostic values.
authors.affiliation: Department of Abdominal Surgery, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhao
authors.forename: Jian-Qiang
authors.initials: JQ
authors.lastname: Cai
authors.forename: Xin-Yu
authors.initials: XY
authors.lastname: Bi
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Zhao
authors.forename: Zhen
authors.initials: Z
authors.lastname: Huang
authors.forename: Hai-Zhen
authors.initials: HZ
authors.lastname: Lu
authors.forename: Hai-Tao
authors.initials: HT
authors.lastname: Zhou
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012509:Sarcoma / Q000175:diagnosis* / Q000601:surgery*; D016019:Survival Analysis; D055815:Young Adult